US Bridges

Old HWY Road over Beaver Creek

FairPosted for load

Washington County, Idaho · 1.2 E. Midvale · Structure no. 000000000028835

Built
1930
95 years old, rebuilt 1987
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
220
2023 count
Owner
County
County Highway Agency

About this bridge

Old HWY Road over Beaver Creek is a steel stringer/multi-beam or girder carrying Old HWY Road over Beaver Creek in Washington County, Idaho. It was built in 1930 and reconstructed in 1987, so it is 95 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 220 vehicles a day, roughly 16% of them trucks, projected to reach 330 by 2042. The structure is 33 ft (10.1 m) long and 19 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesOld HWY Road
CrossesBeaver Creek
Location1.2 E. Midvale
RouteCounty Highway 0
CountyWashington County
StateIdaho
Coordinates44.47011, -116.713
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating22 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width19 ft (5.8 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2023)
Projected traffic330 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$408,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old HWY Road over Beaver Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1987.

What condition is Old HWY Road over Beaver Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Old HWY Road over Beaver Creek carry?

About 220 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Old HWY Road over Beaver Creek?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 19 ft wide.

Who owns Old HWY Road over Beaver Creek?

It is owned by the County Highway Agency.